102203203122 has 12 divisors (see below), whose sum is σ = 221440273470. Its totient is φ = 34067734368.

The previous prime is 102203203079. The next prime is 102203203127. The reversal of 102203203122 is 221302302201.

102203203122 is a `hidden beast` number, since 1 + 0 + 220 + 320 + 3 + 122 = 666.

It can be written as a sum of positive squares in only one way, i.e., 92945107161 + 9258095961 = 304869^2 + 96219^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5677955729 = 102203203122 / (1 + 0 + 2 + 2 + 0 + 3 + 2 + 0 + 3 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 102203203095 and 102203203104.

It is not an unprimeable number, because it can be changed into a prime (102203203127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2838977847 + ... + 2838977882.

Almost surely, 2^102203203122 is an apocalyptic number.

102203203122 is an abundant number, since it is smaller than the sum of its proper divisors (119237070348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102203203122 is a wasteful number, since it uses less digits than its factorization.

102203203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5677955737 (or 5677955734 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 102203203122 its reverse (221302302201), we get a palindrome (323505505323).

The spelling of 102203203122 in words is "one hundred two billion, two hundred three million, two hundred three thousand, one hundred twenty-two".